xor

Description

The boolean 'xor' function returns true if one, and only one, of its two boolean arguments are true.

Function prototype

bool xor <bool:arg1> <bool:arg2>

Arguments

Name	Type	Comment
arg1	bool	The first boolean value.
arg2	bool	The second boolean value.

Return value

True if:

arg1 is true and arg2 is false, or;
arg2 is true and arg1 is false.

False otherwise.

Example

echo <zs:xor false false> // should be false
echo <zs:xor false true> // should be true
echo <zs:xor true false> // should be true
echo <zs:xor true true> // should be false

… the output of which is written to the event log by echo as:

false
true
true
false

Comments

None.